Answer:
32,432,400
Step-by-step explanation:
This you can use a permutation.
P(15,7)15x14x13x12x11x10x9
There are 32,432,400 ways to arrange it.
Answer: -7
Step-by-step explanation: The sea level is at 0 so 0-7= -7
If you have for example
19.90$ you round it as 20
if u have 19.05 you have it as 19 only because its not near to the next number to it
Where is the starting and stopping point?
(N-2) * 180 so is 1800
(N-2) * 180 / 12 is 150